Solve for a.

5a - 2 = 23

Answer:

wheres the triangle?

Step-by-step explanation:

Answer:

21%

Step-by-step explanation:

Another 10% increased means it becomes 110*110/100 = 121. The first 10% increase means the second 10% increase will be an actual 11% increase from the original, so it will be a total of 21%.

Answer:

Step-by-step explanation:

Because the first 10% increase is calculated as 10% of what you started with. The second 10% is 10% of what you started with plus 10% of the increase caused by the original 10% increase.

Let's do the maths…

Let's start with 100 to make things easy.

We know that 10% of 100 is 10.

We know that 20% of 100 is 20.

So if we increase 100 by 10% we get 110.

If we increase 100 by 20% we get 120.

Now lets do the 10% plus 10%.

From the first 10% increase we were left with 110.

Now if we take 10% of the 110 we have 11.

Add that to the 110 and we get 121.

This is why people are surprised how quick a lone can rise if we don't pay it off. We are paying interest on the basic sum plus interest on the interest, then interest on the interest on the interest.

HOPE THIS HELPS YOU

Follw me = 10 thanks

Mark as brainliest = 10 thanks

1 thanks to me = 2 thanks

Measurement of 5 quarts is equal to 20 cups.

Measurement is the method of comparing the properties of a quantity or object using a standard quantity.

Measurement is essential to determine the quantity of any object.

We have the measurement, 1 cup = 1/4 quarts

Let x be the number of quarts for 20 cups.

By using proportion,

1 / (1/4) = 20 / x

Cross multiplying,

x = 20 × (1/4)

x = 5

Hence the measurement of 20 cups is equal to 5 quarts.

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Thee measurement equals to 20 cups is 5 quarts.

Thus, option (a) is correct.

To determine which measurement is equal to 20 cups, compare the conversion factors between cups and each of the given measurements.

As, the conversion factors are:

1. 5 quarts

= 5 x  4 cups/quart

= 20 cups

2. 40 pints

= 40 x  2 cups/pint

= 80 cups

3. 1 gallon

= 1 x  16 cups/gallon

= 16 cups

4. 320 fluid ounces

= 320 x  0.125 cups/fluid ounce

= 40 cups

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Answer:

Step-by-step explanation:

0-192 29-17

Equation can be solced to find t

Answer:

n²-n

Step-by-step explanation:

for example for the second term

2²=4

4-2=2 and so it works

Answer:

1380 children and 820 adults went to the zoo that day

Step-by-step explanation:

System of Equations

Define the following variables

x = number of children that went to the zoo

y = number of adults that went to the zoo

On a certain day,  2000 people went to the zoo, thus:

x + y = 2000

Solving for x:

x = 2000 - y        [1]

The admission ticket is $1.50 for children and $4.00 for adults and that same day, $5050 was collected, then:

1.50x + 4y = 5050       [2]

Substituting x from [1]:

1.50(2000 - y) + 4y = 5050

Operating:

3000 - 1.50y + 4y = 5050

3000 + 2.5y = 5050

Subtracting 3000

2.5y = 5050 - 3000 = 2050

Dividing by 2.5

y = 820

From [1]

x = 2200 - 820 = 1380

1380 children and 820 adults went to the zoo that day

Answer:

proportional READ BELOW

Step-by-step explanation:

so its going by multiplying by 8's bc of the -10

so i think it is

id k tho  havent done negatives

please dont sue me if im wrong

Answer:  its 2

Step-by-step explanation:

14 can only = 1 x 14

                  & 2 x 7

:D:D:D:D:D:D:D:D:D:D

Step-by-step explanation:

0.9(17) -2.7(3) =

15.3-8.1

=7.2

Answer:

you have to write it down on a piece of paper and go from there

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

x = 3

y = -3

(3, -3)

Step-by-step explanation:

Choose one of the equations and isolate y. I will use the first one.

2x + y = 3

Y = 3 - 2x

Now sub the solution for y into the equation below.

3x - y = 3

3x - (3 - 2x) = 12

3x - 3 + 2x = 12

5x - 3 = 12

5x = 15

x = 3

To get y, sub the answer for x into one of the equations.

2(3) + y = 3

6 + y = 3

y = 3 - 6

y = -3

Answer:

(x,)y) =(3,-3)

Step-by-step explanation:

add the equations vertically to eliminate one variable

2x +y = 3

3x -y = 12

5x =15    divide both sides by 5

x  = 3       now substitute the given value of x into the equation  2x+y=3

2 x 3 + y = 3  multiply 2x3

6 +y =3           move constant to the right

y = 3-6

y = -3  

Answer:

H

Step-by-step explanation:

ST is similar to EF and WR is similar to CD.

Hope it helps.

Answer:

48

Step-by-step explanation:

just divide it by 0.5....

Answer:

Step-by-step explanation:

Answer:

x has the values -4 and -3

Step-by-step explanation:

x² + 7x + 12 = 0

x² + 3x + 4x + 12 = 0

x(x + 3) + 4(x + 3) = 0

(x + 4)(x + 3) = 0

"Bisect" means cuts in half perfectly. In other words, 66° = 3x. calculate and you get x=22°

y+10 = 56

y= 56-10

y= 46°

Answer:

30

Step-by-step explanation:

a square is equal on all sides, area = length x width

900 = 30(length) • 30 (width)

Answer:

C, 100 degrees

Step-by-step explanation:

180-80=100

Answer:

14.5

Step-by-step explanation:

The radius is half the diameter.

29/2=14.5

Answer:

Step-by-step explanation:

No of saves in 3 games = 12

Rate of saves per game = 12 ÷ 3 = 4

From the given frequency table,

Frequency represents the number of people who made the calls.

Total number of people who made the calls = 16 + 11 + 5 + 3 + 1

                                                                          = 36

Number of people who made less than 13 calls = 16 + 11 + 5

                                                                                 = 32

Number of people who made at least 9 calls = 5 + 3 + 1

                                                                            = 9

Percentage of people who made at least 9 calls = [tex]\frac{\text{Number of people who made at least 9 calls}}{\text{Number of people who made the calls}}\times 100[/tex]

= [tex]\frac{9}{36}\times 100[/tex]

= 25%

Difference in the number of people who made the calls between 5-8 calls than 13-16 calls = 11 - 3 = 8

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Answer:

The answer is 22.5 lbs or 22 and a half lbs of mashed potatoes.

Step-by-step explanation:

The ratio of potatoes is 1.5.

10 lbs potatoes * 1.5 = 15 lbs mashed

So 15 lbs potatoes * 1.5 is: 22.5 lbs mashed potatoes.

Answer:

It's D.

Step-by-step explanation: